Crystal Lion would go great with coining it out with Level Up! on Stand Against Darkness. But that's one crazy and unlikely dream. Still, if pulled off, that'd be cool. And even if you just hero power, that's still a 7 mana 6/6 divine shield. Playable? Yes. Good? To be determined.

So.... straight up worse Thing From Below? Blizzard's shititng on Pally continues, this card wouldn't even be great if it cost 1 less for every silver hand recruit you summoned but it would've been definately good. Now.... it's playable at best. There is no way in hell you can maintain a good silver hand recruit board so it's a vanilla 6 mana 5-5 with divine shield but we can say there is going to be 1 recruit in play so 5 mana 5-5 with divine shield. Not good enough!

This card should be like "thing from below" which makes it cost one less for each silver hand recruit you've summoned this game, which then it would live up to thing from below's standard. Making it cost one less for each silver hand recruit you control makes this unplayable. I don't see why blizzard make cards like this when "thing from below" exists. If you compare them, thing from below is considerably better considering you don't have to control the recruits. I really hope they change this so this card might actually be playable.

Playing Devil's Advocate here, but I'm thinking they didn't go the way of the Thing From Below because Silver Hand Recruits can be summoned in groups of more than one. With Shaman, each card only summons one totem and hero power summons one totem. With Paladin, you can summon multiple recruits per card. For instance:

Turn 1: Lost in the Jungle

Turn 2: Hero Power

Turn 3: Lost in the Jungle and Hero Power, then Crystal Lion

By turn 3, you could potentially summon 8/8 worth of stats for only 3 mana, 5/5 of which has a Divine Shield. Imagine an opponent who didn't manage to clear the other recruits by this point. For Shaman, Thing from Below could come out as early as turn 5:

Turn 1: Nothing

Turn 2: Hero Power

Turn 3: Mana Tide Totem (for instance)

Turn 4: Flametongue Totem and Hero Power

Turn 5: Hero Power and Primalfin Totem, then Thing From Below

Both of these scenarios assume you go first. These were just my thoughts. I think Blizzard would only print this card with Thing From Below text if it cost something like 8 or 9.

Well, this is an interesting card. You can make it yourself with Blessing of Kings and Argent Squire as early as Turn 4; in that case the only thing you're doing is putting 2 cards into 1 for 1 extra mana when you play this without filling your board with recruits. But as to making Crystal Lion work as intended...

In Standard, it's a lot harder to make this work. It's harder to combine summoning and buffing the recruits at the same time so they stay alive and do work for you. And since this card relies on how many recruits are still alive versus how many you summoned, this card is essentially a reward for managing to fill your board with them. Stand Against Darkness can bring this out for 1 mana, but the earliest you can do that is Turn 5 with The Coin unless you somehow already control the board and have a bunch of recruits. And by that time there should be more pressing things that your opponent is doing that makes a 5/5 not so dangerous, even with a Divine Shield.

That being said, I can't really find any space for poor Crystal Lion. I need the cards I already have to make the Silver Hand Recruits actually work and scale into late game. And since I am focusing on the recruits, I'm focused on buffing them and not the cards revolving around them. It has potential, it's not bad, but I don't think I'll find Crystal Lion taken seriously.